GoldBean MCP Server
51 Baidu AI MCP tools: OCR, Vision, LLM, Speech, NLP. Pay-per-call from $0.001.
Open source Open in the app JSON README (API)
About
51 Baidu AI MCP tools: OCR, Vision, LLM, Speech, NLP. Pay-per-call from $0.001.
Details
- Kind
- MCP servers
- Topic
- AI, RAG & memory
- Publisher
- wuzenghai616-lang
- Origin
- official
- Category
- ferramentas
- Transport
- local
- Version
- 1.2.0
- Stars
- 1
- Forks
- 7
- Open pull requests
- 3
- Last push
- 2026-07-30T11:33:06Z
- Repository state
- ativo
- Language
- JavaScript
- License
- MIT
- Added
- 2026-08-29 04:01:41
- Updated
- 2026-08-29 04:01:41
- Origin id
io.github.wuzenghai616-lang/goldbean
README
# 🫘 GoldBean - x402 Micropaid API Marketplace
[](https://github.com/wuzenghai616-lang/goldbean)
[](https://npmjs.com/goldbean-mcp)
> Pay per request with USDC on Base. No signup, no API key, no monthly subscription.
> Every call costs $0.02 USDC via the [x402](https://x402.org) protocol.
**GoldBean is live:** `http://104.225.233.23:9879`
---
## Quick Start
### 1. Prerequisites
- **USDC on Base** (`eip155:84532` testnet or `eip155:8453` mainnet)
- **A wallet** that can sign x402 payments (AgentCash, CDP Wallet, or any EVM wallet)
### 2. Try a Free Endpoint
```bash
curl http://104.225.233.23:9879/health
# {"status":"ok","service":"GoldBean","timestamp":"2026-05-15T12:00:00.000Z"}
curl http://104.225.233.23:9879/eth-price
# {"usd":"2255.93","change24h":"+0.31%","timestamp":"2026-05-15T12:00:00.000Z"}
```
### 3. Call a Paid Endpoint
```bash
curl http://104.225.233.23:9879/paid/btc-price
# HTTP 402 Payment Required
# x402-challenge: {...}
```
To pay the 402 and get data, you need an x402-capable client:
**Using AgentCash:**
```bash
npx agentcash@latest fetch http://104.225.233.23:9879/paid/btc-price
```
**Using x402-proxy (CLI tool):**
```bash
npx x402-proxy http://104.225.233.23:9879/paid/btc-price
```
**Using curl with manual payment (advanced):**
```bash
# Step 1: Request triggers 402
curl -s -D - http://104.225.233.23:9879/paid/btc-price
# Step 2: Parse x402-challenge header, sign with your wallet
# Step 3: Retry with x402-payment header
curl -H "x402-payment: <signed-payment>" http://104.225.233.23:9879/paid/btc-price
```
### 4. MCP Integration
Add to Claude Desktop / Cursor / Cline `mcpServers` config:
```json
{
"mcpServers": {
"goldbean": {
"url": "http://104.225.233.23:9879/mcp"
}
}
}
```
---
## Available Endpoints
### Free (no payment needed)
| Endpoint | Description |
|----------|-------------|
| `GET /` | Service info & endpoint list |
| `GET /health` | Health check |
| `GET /eth-price` | Real-time ETH price (via CoinGecko) |
| `GET /gas` | ETH gas price estimate |
| `GET /card` | Service card / metadata |
| `GET /mcp` | MCP protocol manifest |
### Paid ($0.02 USDC per call)
| Endpoint | Description |
|----------|-------------|
| `GET /paid/btc-price` | Real-time BTC price (via CoinGecko) |
| `GET /paid/gas-forecast` | Gas price forecast |
| `GET /paid/market-intel` | Market sentiment & Fear & Greed Index |
| `GET /paid/defi-insights` | DeFi TVL & chain data |
| `GET /paid/network-health` | Blockchain network health |
| `GET /paid/tracker-report` | MEV & on-chain tracker report |
| `GET /paid/sol-token-risk` | Solana token risk assessment |
---
## How x402 Payment Works
```
Client GoldBean Server
│ │
├─ GET /paid/btc-price ─────────────┤
│◄─ 402 Payment Required ───────────┤
│ x402-challenge: {...} │
│ │
├─ Sign challenge with wallet ──────┤
│ (off-chain, no gas fee) │
│ │
├─ GET /paid/btc-price ─────────────┤
│ x402-payment: <signed> │
│◄─ 200 OK ─────────────────────────┤
│ {"usd":"68000.00",...} │
│ │
```
The facilitator (`x402.org`) handles settlement. Your wallet sends USDC only when challenge is accepted. No recurring charges.
---
## Data Sources
- **CoinGecko API** — Real-time cryptocurrency prices
- **Etherscan API** — Gas price oracle
- **Alternative.me** — Fear & Greed Index
---
## Seller Info
- **Seller wallet:** `0xB5f5CBe48E0595C044Bc626f278F757463eAc2Ce` (Base)
- **Network:** `eip155:84532` (Base Sepolia testnet) → migrating to `eip155:8453` (Base mainnet)
- **Facilitator:** `https://x402.org/facilitator`
- **Price:** $0.02 USDC per paid call
---
## Architecture
```
┌─────────────┐ x402 protocol ┌──────────────┐
│ Client │ ◄─────────────────────► │ VPS (USCA) │
│ (curl/Agent)│ HTTP + 402 flow │ GoldBean 🫘 │
└─────────────┘ │ :9879 │
│ └──────┬───────┘
│ ┌──────────────┐ │
└────────►│ Email │◄─────────────┘
│ (Gmail) │ Monitor alerts
│ Monitor │
└──────────────┘
```
---
## Development
```bash
# Server
cd /opt/goldbean
npm install express axios @x402/express @x402/core @x402/evm
node server.js
# Monitor
python3 /opt/goldbean/chain_monitor.py
```
---
## Ecosystem
- [x402 Foundation](https://x402.org)
- [Awesome x402](https://github.com/Merit-Systems/awesome-x402)
- [x402 TypeScript SDK](https://github.com/x402-foundation/x402)
---
*Built on Bandwagon VPS (USCA-2). Part of the x402 ecosystem.*